Cannot set regdomain

Hello linux-wireless list!

I tried the IRC, but there was no answer, so I try the mailing-list.

I want to change my regdomain issuing this command:

iw reg set DE

But I get no change in regdomain, which I can observe using

iw reg get

which always shows me, I am in domain "00". If I start udevadm like this:

udevadm monitor --environment kernel

there is no output while issueing any of the commands shown above. I am using these commands with respect to this webpage-documentation:

http://wireless.kernel.org/en/developers/Regulatory/CRDA

Could anyone please tell me, why I cannot set the regdomain? I did follow the steps presented at

http://acx100.erley.org/stable.html

Kind regards,
Dennis

Sorry folks! Absolutely my fault, since I did not install crda. I must have forgotten it.